Engines.

 

A SIMPLE ENGINE REFRESH TO RACE REBUILD; since 1967, P&K Thornton Restorations have a proven track record in building classic Jaguar & Daimler engines from usual standard engine to fast road use engines for exceptional performance. Our detailed process of rebuilding XK engines includes stripping and inspecting the components, measuring and building an inspection report, vapour cleaning components, balancing, machining and polishing. Whether you want a full-on fast road engine or a mild refresh of your street motor, we are more than able to accommodate your big cat’s needs.

 

All engine rebuilds follow a standard procedure. When your engine arrives with us, it will be photographed and all serial numbers and components noted. We've put this procedure in place to make sure you will have your own unit and ancillary parts returned.

Your engine will be fully stripped, chemically cleaned, after which all components will be inspected. Crankshaft, conrods, blocks and heads will be visually inspected for cracks and suitability for overhaul. Following inspection, the engine components will pass through the machining workshop. As required, crankshafts will have the journals ground and polished. The cranks assembly will be balanced, same as the conrods. Where required, the conrods will be bushed, sized and matched and have new nuts and bolts fitted.

Engine blocks will be inspected for main bearing alignments and line bored where necessary to suit the new pistons and rings. Cylinder liners can be removed and internal waterways cleaned. Surface ground is necessary, the block will then be cleaned and painted with new core plugs fitted. The bottom end will be refitted using heavy duty bearings, gaskets and seals. All timing chains will be renewed, uprated tensioner can be fitted together with new chain dampers.

Cylinder head will be pressure tested and machined as required. Valve guides can be replaced or lined to comply with the lead free fuel. Exhaust valves seats can be replaced for lead free use and cut to suit the new valves, while the inlet seats can be cut to suit the valves. Bucket guides to be inspected and sized. New valves, springs, stem seals, shims and followers will be fitted. Chamber sizes will be checked and cylinder head face surfaced to suit.

Camshafts can be reprofiled as specified. On the outside, the head casting will be refurbished as per standard, painted and front polished as per original. New studs are to be used for manifolds, cylinder head. New chrome nuts and head gasket, new cam covers nuts and copper washers. Cam covers will be professionally cleaned and polished for a perfect sparkle. The complete engine with ancillaries (carburettors, manifolds, water pump, distributor, filter head, flywheel, crank damper) will be hot tested under its own power on our very own engine running rig. We also offer a reconditioning service for carburettors. We can supply from stock any consumables, spark plugs, clutch kits, cooler kits, coils, leads, engine mounts e.t.c.